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Cheap flights from Seattle to Ireland from €213

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 16/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
13:30 - 11:20
SEA
-
SNN
13h 50m
1 stop
British Airways Logo
16:50 - 11:35
SNN
-
SEA
26h 45m
1 stop
€519British Airways
Sat, 12 Sep - Sun, 20 Sep
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m
1 stop
Icelandair Logo
11:30 - 17:00
DUB
-
SEA
13h 30m
1 stop
€621Icelandair
Thu, 21 Jan - Mon, 25 Jan
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
€623Icelandair
Tue, 1 Sep - Thu, 10 Sep
Multiple Airlines Logo
15:40 - 08:20
SEA
-
DUB
32h 40m
3 stops
Multiple Airlines Logo
05:55 - 20:40
DUB
-
SEA
22h 45m
3 stops
€624Multiple Airlines
Thu, 27 Aug - Thu, 3 Sep
Multiple Airlines Logo
08:00 - 18:20
SEA
-
DUB
26h 20m
3 stops
Multiple Airlines Logo
18:55 - 16:59
DUB
-
SEA
30h 04m
2 stops
€624Multiple Airlines
Mon, 31 Aug - Mon, 7 Sep
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
€625Icelandair
Fri, 16 Oct - Mon, 19 Oct
Icelandair Logo
23:25 - 13:15
SEA
-
DUB
29h 50m
1 stop
Icelandair Logo
12:15 - 17:55
DUB
-
SEA
13h 40m
1 stop
€627Icelandair
Thu, 20 Aug - Wed, 26 Aug
Icelandair Logo
23:25 - 13:15
SEA
-
DUB
29h 50m
1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
€628Icelandair
Sat, 12 Sep - Thu, 24 Sep
Multiple Airlines Logo
19:00 - 07:15
SEA
-
DUB
28h 15m
2 stops
Multiple Airlines Logo
13:00 - 18:45
DUB
-
SEA
13h 45m
1 stop
€629Multiple Airlines
Wed, 7 Oct - Tue, 13 Oct
Multiple Airlines Logo
19:00 - 08:20
SEA
-
DUB
29h 20m
3 stops
Multiple Airlines Logo
19:05 - 20:40
DUB
-
SEA
33h 35m
3 stops
€630Multiple Airlines
Mon, 17 Aug - Tue, 25 Aug

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Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
21 Jan
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
25 Jan
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€621
Icelandair
1 Sept
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
10 Sept
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€623
Icelandair
16 Oct
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
19 Oct
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€625

JetBlue flights from Seattle to Ireland

Our best JetBlue deals on Seattle to Ireland flight tickets
JetBlue
27 Aug
SEA23:45Seattle/Tacoma Intl
24h 35m
1 stop
DUB08:20Dublin
3 Sept
DUB10:40Dublin
20h 08m
1 stop
SEA22:48Seattle/Tacoma Intl
€638
JetBlue
12 Sept
SEA23:42Seattle/Tacoma Intl
24h 38m
1 stop
DUB08:20Dublin
19 Sept
DUB11:30Dublin
17h 14m
1 stop
SEA20:44Seattle/Tacoma Intl
€643
JetBlue
5 Sept
SEA23:40Seattle/Tacoma Intl
24h 40m
1 stop
DUB08:20Dublin
14 Sept
DUB11:30Dublin
17h 14m
1 stop
SEA20:44Seattle/Tacoma Intl
€646

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 1 August 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 12/9

13:30-11:20

1 stop13h 50m

Shannon

Sun 20/9

16:50-11:35

1 stop26h 45m

€519

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 21/1

14:35-10:15

1 stop11h 40m

Dublin

Mon 25/1

11:30-17:00

1 stop13h 30m

€621
Fastest return journey

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/9

15:40-11:05

1 stop11h 25m

Dublin

Thu 10/9

14:15-17:55

1 stop11h 40m

€623

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 27/8

15:40-08:20

3 stops32h 40m

Dublin

Thu 3/9

05:55-20:40

3 stops22h 45m

€624

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 31/8

08:00-18:20

3 stops26h 20m

Dublin

Mon 7/9

18:55-16:59

2 stops30h 04m

€624

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 16/10

15:40-13:15

1 stop13h 35m

Dublin

Mon 19/10

14:15-17:55

1 stop11h 40m

€625

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 20/8

23:25-13:15

1 stop29h 50m

Dublin

Wed 26/8

12:15-17:55

1 stop13h 40m

€627

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 12/9

23:25-13:15

1 stop29h 50m

Dublin

Thu 24/9

14:15-20:40

1 stop14h 25m

€628

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 7/10

19:00-07:15

2 stops28h 15m

Dublin

Tue 13/10

13:00-18:45

1 stop13h 45m

€629

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 17/8

19:00-08:20

3 stops29h 20m

Dublin

Tue 25/8

19:05-20:40

3 stops33h 35m

€630

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €447.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight from Seattle to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €604 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €536 on momondo.

What cabin class options are available on Seattle to Ireland flights?

There is only 1 cabin class available to choose from on Seattle to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Ireland.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airline offering direct flights is Aer Lingus..
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

Frequently asked questions about flying from Seattle to Ireland

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

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Popular flights according to clicks in the last 7 days on momondo
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